Pumping attachment for windmills.



E. A. CRAWFORD.

PUMPING ATTACHMENT FOR WINDMILLS.

APPLICATION FILED sEPT.9. 1916.

1,228,297. Patented May29, 1917.

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E. A. CRAWFORD.

PUMPING ATTACHMENT FOR WINDMILLS.

APPLICATION man SEPT. 9, I916.

1,228,297. Patented May 29, 1917.

2 SHEETS-SHEET 2- awn/newton ELLSWORTH ADAM CRAWFORD, OF THATGHER, ARIZONA.

PUMPING ATTACHMENT FOR WINDMILLS.

Specification of Letters Patent.

Patented May 29, 1917.

Application filed September 9, 1916. Serial No. 119,255.

To all whom it may concern:

Be it known that I, ELLswon'rH A. CRAW- roen, a citizen of the United States of America, residing at Thatcher, in the county of Graham and State of Arizona,

have invented certain useful Improvements in Pumping Attachments for WVindmills, of which the following is a specification, reference being had therein to the accompanying drawing.

The present invention relates to improvements in pumping attachments for wind mills, one object of the invention being the provision of a device of this character which will increase the efliciency of the wind will in that the same will operate efficiently under light winds which at the present time are ineffective.

A further object of this invention is the provisirm of an attachment which is readily connected in place upon any of the construc: tions of wind mills and pumping mechanisms now employed, and which will increase the efliciency thereof.

In the accompanying drawings Figure l is a side elevation of the lower portion of a wind mill tower and pump, showing the present invention applied thereto.

Fig. 2 is an enlarged detail view of the side elevation of the attachment per se.

Fig. 3 is a top plan view thereof.

Figs. f and 5 are detail views thereof.

Referring to the drawings, the numeral 5 designates the pump rod, which is adapted to be reciproeated, and 6 the wind mill tower.

The present attachment consists of a substantially ill-shaped frame '1 embodying spaced parallel side arms 8 and the intern'iediate portion 9, the side arms being prov'ided with plurality of uniformly spaced openings 10 while the bolt 11 engages the neck portion 12 of a weight 13 and any pair of opposed openings so as to adjustably connect the neck portion 12 between the arms 8. An attaching and supporting block 13 has the outer ends of the arms 8 rigidly connected thereto while the clevis 14:

is pivoted to the upper part of the block and serves to pivot-ally connect the chain 15 thereto.

This chain is led over the grooved and curved outer end 16 of the block which is arranged in close relation to the pump rod and is connected by means of the clevisl'! to the pump rod. The shaft 18 is mounted in the block and is journaled in the tower 11 by means of U bolts 19, this arrangement serving to rotatably mount the counterbalancing means for the pump rod.

In operation, the chain carried clevis is first adjusted upon the pump rod so that the pump rod will be given the proper length of stroke. The weight is now adjusted to balance with the lift of the water, thus equalizing the reciprocation or the up and down stroke of the pump piston and thereby being adapted to relieve excessive lift strain from the wind mill (not shown).

From the foregoing description, it is evident with a device of this character attached or interposed between the wind mill gearing and the pump'rod, that an exceedingly light wind will operate the pump rod through the wind mill, it having been found that when the mills without this attachment are standing idle, a mill with this attachment will operate efiiciently.

What I claim as new is As a means for counter-balancing a vertically reciprocating rod, a pivotally mounted attaching block having one end curved and grooved and positioned adjacent the rod, a flexible element the respective ends of which are pivotallv connected to the rod and to the block while the main portion thereof is trained about the curved and grooved end of the block, a substantially U-shaped frame the side arms of which are rigidly connected at their free ends to the block so as to extend theframe from the opposite end of the block, and a weight adjustably mounted between the arms of the frame.

In testimony whereofl afiiX my signature.

ELLSWORTH ADAM CRAWFORD.

Copies of this patent may be obtained for five cents each, by addressing the Commissioner of Patents, Washington, D. G. 

